Apparatus and method to maintain positive separation of reactive bands

摘要

A method of packaging first and second kneadable plastic masses that react when mixed includesPP(a) providing the masses in lengthwise elongated strip form and traveling the masses lengthwise in parallel relation but with a predetermined gap therebetween, P P(b) providing an elongated first plastic film that defines a barrier and traveling that film in the direction of travel of the masses,P P(c) and urging the traveling film toward the traveling masses to contact same and to locate the barrier in the gap. PPThe film may have side sections simultaneously urged against surfaces of the traveling masses; a second traveling film beneath the masses may be contacted by the barrier; and end portions of the first film may be heat sealed to the second film to encapsulate the masses.